211326021005 has 8 divisors (see below), whose sum is σ = 276644973024. Its totient is φ = 153691651600.

The previous prime is 211326020963. The next prime is 211326021029. The reversal of 211326021005 is 500120623112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-211326021005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921145591 + ... + 1921145700.

It is an arithmetic number, because the mean of its divisors is an integer number (34580621628).

Almost surely, 2^211326021005 is an apocalyptic number.

It is an amenable number.

211326021005 is a deficient number, since it is larger than the sum of its proper divisors (65318952019).

211326021005 is a wasteful number, since it uses less digits than its factorization.

211326021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842291307.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 211326021005 its reverse (500120623112), we get a palindrome (711446644117).

The spelling of 211326021005 in words is "two hundred eleven billion, three hundred twenty-six million, twenty-one thousand, five".